As shown in the accompanying figure, ____ is the technique photographers, designers, and artists use to create the illusion of three dimensions on a flat or two-dimensional surface.

The VTP ____ option reduces the number of VTP updates that traverse a link.

A. transparent B. client C. server D. pruning

________ is a measure of how two set of data vary simultaneously and is calculated by taking the average of each product of the deviation of a data point.

A. Covariance B. Correlation C. Causation D. Period